<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8" />
		<title>浮动</title>
		<link rel="stylesheet" href="css/box.css" />
	</head>
	<body>
		<!-- 快速创建类名为box的盒子：标签名.box*个数>tab键 -->
		<div class="bigbox clearfix">
		<div class="box">box1</div>
		<div class="box">box2</div>
		<div class="box">box3</div>
		<!-- <div class="box2"></div> -->
		<!-- <div class="clear"></div> -->
		</div>
		<div class="box2"></div>
	</body>
</html>
